1256352720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{747829}}^1$

素因数の和:747852

約数の個数: 80

約数和(自身を含む): 4451084160

約数和(自身を除く): 3194731440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 747829, 1495658, 2243487, 2991316, 3739145, 4486974, 5234803, 5982632, 7478290, 8973948, 10469606, 11217435, 11965264, 14956580, 15704409, 17947896, 20939212, 22434870, 26174015, 29913160, 31408818, 35895792, 41878424, 44869740, 52348030, 59826320, 62817636, 78522045, 83756848, 89739480, 104696060, 125635272, 157044090, 179478960, 209392120, 251270544, 314088180, 418784240, 628176360, 1256352720]

約数ペア:

[(1, 1256352720), (2, 628176360), (3, 418784240), (4, 314088180), (5, 251270544), (6, 209392120), (7, 179478960), (8, 157044090), (10, 125635272), (12, 104696060), (14, 89739480), (15, 83756848), (16, 78522045), (20, 62817636), (21, 59826320), (24, 52348030), (28, 44869740), (30, 41878424), (35, 35895792), (40, 31408818), (42, 29913160), (48, 26174015), (56, 22434870), (60, 20939212), (70, 17947896), (80, 15704409), (84, 14956580), (105, 11965264), (112, 11217435), (120, 10469606), (140, 8973948), (168, 7478290), (210, 5982632), (240, 5234803), (280, 4486974), (336, 3739145), (420, 2991316), (560, 2243487), (840, 1495658), (1680, 747829)]